QA1 tubular K-Members - anyone using one?
#1711307
12/16/14 01:43 AM
12/16/14 01:43 AM
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Joined: May 2011
Posts: 220
Aurora, CO
jbeintherockies
OP
enthusiast
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OP
enthusiast
Joined: May 2011
Posts: 220
Aurora, CO
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Hello, My brother is considering going with a QA1 tubular K-member in his 1967 Belvedere II with a big block and 4spd. Is there anyone on here running one on the street? If so, what do you think? Is it worth the $600 bucks? Is it strong enough for street use? http://chucker54.stores.yahoo.net/qa1motuk2.html#.VI-oxHshWM8Thank you in advance.
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Re: QA1 tubular K-Members - anyone using one?
[Re: jbeintherockies]
#1711308
12/16/14 01:53 AM
12/16/14 01:53 AM
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Joined: Jan 2003
Posts: 9,826
las vegas
70AARcuda
master
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master
Joined: Jan 2003
Posts: 9,826
las vegas
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http://www.jegs.com/i/QA1/122/52315/10002/-1Dont know if they worth it..but this is 15 dollars cheaper plus free shipping.. I have one on a 71 dart but it is a bracket racer not a daily driver.
Tony
70 AARCuda Vitamin C
71 Dart Swinger 360 10.318 @ 128.22(10-04-14 Bakersfield)
71 Demon 360 10.666 @122.41 (01-29-17 @ Las Vegas)
71 Duster 408 (10.29 @ 127.86 3/16/19 Las Vegas)
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Re: QA1 tubular K-Members - anyone using one?
[Re: TC@HP2]
#1711311
12/16/14 06:42 PM
12/16/14 06:42 PM
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Joined: Jan 2011
Posts: 4,785
Utah and Alaska
astjp2
master
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master
Joined: Jan 2011
Posts: 4,785
Utah and Alaska
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I wonder if they make them with Hemi mounts? Never looked but they do seem to add a lot of room over a stock K frame
1941 Taylorcraft
1968 Charger
1994 Wrangler
1998 Wrangler
2008 Kia Rio
2017 Jetta
I didn't do 4 years and 9 months of Graduate School to be called Mister!
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Re: QA1 tubular K-Members - anyone using one?
[Re: TC@HP2]
#1711313
12/23/14 03:16 PM
12/23/14 03:16 PM
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Joined: May 2011
Posts: 220
Aurora, CO
jbeintherockies
OP
enthusiast
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OP
enthusiast
Joined: May 2011
Posts: 220
Aurora, CO
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I just got off of the phone with QA1 tech support. He told me the new B/E body tubular k-member is designed to use the factory torsion bars. In order to use coil overs with their tubular k-member, custom fabrication would be required.
I also asked how much they weigh and he told me about 35 pounds.
Just passing that along.
Last edited by jbeintherockies; 12/23/14 03:19 PM.
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Re: QA1 tubular K-Members - anyone using one?
[Re: jbeintherockies]
#1711317
12/24/14 12:46 PM
12/24/14 12:46 PM
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Joined: Sep 2003
Posts: 1,688
Marlboro, NY, USA
Rick_Ehrenberg
top fuel
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top fuel
Joined: Sep 2003
Posts: 1,688
Marlboro, NY, USA
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Several potential issues, at least on the A-body version I studied:
> Tension-strut bushings mounts are just cantilevered tabs welded on. Welds probably will not fail, but tubing will tear. Stock Ks had several generations of beefing and re-beefing to prevent this common problem (bushing would actually tear thru the K).
> Lack of diagonal gusseting (and short distance between the cross-tubes) is a worry -- it can basically "parallelogram"
> Biggest issue: Cannot use stock "locator" attaching bolts, in fact, 2 holes are slotted...remember, tying the chassis rails together is the primary purpose of the K-member!
Would be fine on a drag car, fine as glass-pavement cruiser; I'd not use it on potholed streets, Auto-X, etc.
Rick
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Re: QA1 tubular K-Members - anyone using one?
[Re: Rick_Ehrenberg]
#1711318
12/24/14 01:02 PM
12/24/14 01:02 PM
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Joined: Sep 2007
Posts: 14,889
up yours
Supercuda
About to go away
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About to go away
Joined: Sep 2007
Posts: 14,889
up yours
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Quote:
Several potential issues, at least on the A-body version I studied:
> Tension-strut bushings mounts are just cantilevered tabs welded on. Welds probably will not fail, but tubing will tear. Stock Ks had several generations of beefing and re-beefing to prevent this common problem (bushing would actually tear thru the K).
> Lack of diagonal gusseting (and short distance between the cross-tubes) is a worry -- it can basically "parallelogram"
> Biggest issue: Cannot use stock "locator" attaching bolts, in fact, 2 holes are slotted...remember, tying the chassis rails together is the primary purpose of the K-member!
Would be fine on a drag car, fine as glass-pavement cruiser; I'd not use it on potholed streets, Auto-X, etc.
Rick
Don't go over to the street rod forum and tell them any of this, see Custom 33 thread.
They say there are no such thing as a stupid question.
They say there is always the exception that proves the rule.
Don't be the exception.
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Re: QA1 tubular K-Members - anyone using one?
[Re: jbeintherockies]
#1711319
12/24/14 06:10 PM
12/24/14 06:10 PM
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Joined: Jan 2007
Posts: 2,212
Minnesota
peabodyracing
top fuel
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top fuel
Joined: Jan 2007
Posts: 2,212
Minnesota
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https://www.youtube.com/watch?v=ydy-I62cnj8This video is my car. QA1 borrowed it and had it at their facility all last winter test fitting all possible OEM/QA1 component combinations and trying them all out. I'd posted a few photos of the work here last winter. https://www.youtube.com/watch?v=-aU4kxeziEcHere's a shorter video on the control arms, etc. Last April they let me know they were done with the car. I drove it around all last summer. I was pleased with the setup. Car handles well and in my opinion is plenty strong for street use. The system looks hi tech and really cleaned up the engine compartment.
Lead, follow or get the hell out of the way
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Re: QA1 tubular K-Members - anyone using one?
[Re: jbeintherockies]
#1711320
12/24/14 11:54 PM
12/24/14 11:54 PM
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Joined: Aug 2003
Posts: 43,228
Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,228
Bend,OR USA
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I believe QA1 bought out CAP inventory, engineering docs. and the right to sell them under thier name. That being said I had bought second hand one NOS NIB of CAP K members for a early, 1963 to 1966 A body to use in my 1965 Dart bracket car to eliminate the stock steering and torsion bars, when I got it it was for a stock replacement application   I contacetd Ray at CAP and he said he would change it so I could use the front rack and pinion as well as coil overs on the front to get more clearances for headers using a BB in that car. I ended up selling that K member to Mopar Billy, it is in his 1962 A body drag week car I beleive, has been for several years. Hopefully he will chime in here and let us know what he thinks of it now 
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: QA1 tubular K-Members - anyone using one?
[Re: Rick_Ehrenberg]
#1711321
12/25/14 05:35 AM
12/25/14 05:35 AM
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Joined: Jan 2006
Posts: 797
WA
pro451bee
super stock
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super stock
Joined: Jan 2006
Posts: 797
WA
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